A John Deere 140 Garden tractor. The tractor is on top of a "Rolling Road" designed and built by John Carlile in 1978 at the Tractor Test Lab. The Rolling Road was built in order to test the feasibility of using an "indoor track" to test wheel...

Zetor tractor pulling the Oliver tractor test car on the tractor test track. Versatile 4WD tractors, which have finished the test are lined up along the edge of the test track and the Ag Engineering Annex building (Now the Splinter Laboratories)...

The Ellinwood garden tractor was the first tractor teted after WWII. The Adams test car is hooked up to the back of the tractor. The driver of the tractor is sitting on the bench seat on the front of the test car. The photo was taken on the east...

Farmall 340 tractor from test 665. The tractor tows the Adams test car and a load tractor An IHC rep is driving the tractor. Two boys are riding their bicycles alongside the tractor. This was prohibited in later tests because of the possibility...

Steiger tractor pulling the Oliver tractor test car and three load tractors around the test track. The test car itself is built on a frame with an Oliver tractor as its base. The test car engine is also used as a load tractor.

An unidentified garden tractor on the drawbar test. This was an unofficial test with a proprietary report providd only to the manufacturer. A driver on the Oliver test car was necessary at all times during the Drawbar tests, because the tesat car...

An unidentified Japan-made garden tractor during a drawbar test with the Oliver test car in tow. This was an unofficial test and a proprietary report was issued to the manufacturer only. In order to reduce the load of the heavy test car on the...

"First test using duals on a tractor in 1940 and the first year the new Charley Adams test car was used." Side view of a Ford-Ferguson System 9N tractor towing the test car and another tractor, which serves as a load unit. The Adams test car could...

Unidentified Oliver Tractor (possibly the Oliver 60) during a drawbar test. The Adams Test Car and a Massey Harris 55 load tractor are being towed on the dirt track adjacent to the old Tractor Test Lab building. Note the crankshaft revolution...

"A Ford tractor and a small International Garden Tractor shown with their matched test cars. The Ford is shown with the newer test car which consisted of the Adams Test Cab built on a frame with an Oliver 1850 tractor as power absorption and drive...

"The Cletrac Crawler tractor on steel tracks in the 1930s was made by the Cleveland Tractor Co., Cleveland, Ohio." Visitors are sitting on the tractor. The building in the background is the East Campus Steam Plant.

"Ford Model B Tractor, Ford Minneapolis Tractor Co., Minneapolis, Minn., 1915. The low quality of this tractor was the cause for the passage of the Nebraska Tractor Test Law. The Lester F. Larsen Tractor Test and Power Museum has the 1909-1910...

Case SC tractor from test # 496 during drawbar test. A J.I. Case representative is driving. The tractor is towing the Adams test car plus a load tractor. Note that the teat is conducted on a dirt track. THIS PARTICULAR TRACTOR IS IN THE MUSEUM...

The Square Turn Tractor was manufactured in Norfolk, Nebraska. It was a huge 3-wheeled tractor. About 700 were made around 1917-1925. The easiest way to get it started was with another tractor - as shown here with a John Deere B, which belongs to...

John Deere 4050 tractor towing the Oliver Test Car and a load tractor. Not clear which version this is. The Power shift version was tested in 1982 as test# 1457; the Quad-Range version was tested in 1983 as Test # 1474. A John Deere rep is driving...

The Square-Turn tractor was built in Norfolk, Neb. Not many were sold. It could be operated in either direction which was the reason for the vertical steering column and the reversible seat. The tractor here is driven by Joe Ostry in front of...